Valve-motion for gas-motors.



MEES.

VALVE MOTION ron .GAS MOTORS.

I APPLICATION FILED OUT. 21, 1903. 921,864,. Patented May 18, 1909.

VIII? allay/2674!? e. MEES. VALVE MOTION FOR GAS MOTOR-S.

APPLICATION FILED OCT. 21, 1903- Patented May 18, 1909.

2 SHEETS-SHEET 2.

' 4.5 withrespect to construction.

GUSTAV MEES. OF DUSLSELDORF, GERMANY.

VALVE-M bTION son Gas-Morons.

Specification of Lettersfatent.

Patented May 18,- 1909.

Application filed October 21, 1903. Serial No. 177, 973.

To all whom it may concern:-

Be it known that I, GUSTAV lines, a sub- 'ject of the Emperorof Germany,residing at Schadowstrasse, 21, Dusseldorf, Germany, t haveinvented'certain new and useful Improvements in Valve-Motions for Gas-Mot rs; and I do hereby declare the following to be a full, clear, andexact description of the invention, suchas. will enable others isskilled in the art to which it 'appertains to make and use the same.ln-the ordinary motors, being regulated by the varying oi the charges ofthe cylinder, the regulator acts upon the mechanically guided inletvalve either by means of an adjustable beveled cam or by means of anadjustable lever mechanism, or it influences a throttle arranged in'theinlet channel for; the gas mixture. In each of these cases 0 and also inthe case of the motors being regulated by varying the proportions of themixture at closing organ for the gas (gas' valve, mixing valve, etc.)being independent from the inlet vahve, 1s indispensable. The same canbe gulded mechanically, or it can be made self acting, Inthgfr case ispeclal msffll guiding the same are neoessary and thus the controllingmechanism is increasedwhile a sell acting gas or mixmg valve has thedisadvantage, that it gets easily out of order; by dirt accumulating"therein which occurs especially often, when the gas is not thoroughlypurified, as forin stance when gas is employed'from an aspirtiongenerator;

The present invention has for its object to produce avalve motion,acting 111 an absolutely reliable and exact manner having the leastpossible mechanical means and avoid- 40 ing lever mechanism andcontrolling disks to be moved-by the governor.-

It is aknown fact that disks especially when-employed for valves of thelar er size show serious disadvantages and di culties In theaccompanying-drawings forming part ofthe present specification, Figure 1is a-section through the head of a cylinder with the valve regulatingthe charge: Figs.

l and 1 show details of the regulating device in section. Fig. 2 is adetailed sectional view showing the regulating organ for regulating themixture or in other words regulation by varying the proportion of themixture. Figs. 3 and 3 indicate by sections the the cylindrical valvebody B are closed oil" by a piston slide K which-is connected with I thestem of the inlet valve by means of a crossbar g t thus beingcompelledto follow the axial displacements of the valve. Whentheinletvalve is opened by means of the above described mechanism thepiston slide h: also opens the air and gas ports 2' and mby means ofcorresponding ports i, and m, in sliding down with the valve and in thesame manner'shuts off these ports immediately before the inlet valvecloses. The piston slide thus serves not only as a shut ofi but servesalso as regulation means and to this end it is connected with the inletvalve E in such a manner that? it may be turned by the governor, therebyopening more or less the ports 2' and m by the corresponding ports 2',and m, in its cylindrical body, as shown in. Fig. 1 so that the aspirated air as well as the gas is throttled more or less according. tothe position of the governor and that a smaller or greater quantity ofgas mixture is aspirated. To

' this end the hollow stem (5 of the inlet valve'incloses a spindle pbeing guided at its upper end in a sleeve a and secured in the hub of anarni is which is connected in a suitable manner with the governor. Thecross bar 921. above mentioned slides with a collar or sleeve on thesquare head of the spindle p and the outer trunnions 0 project intocorresponding holes of the piston valve K. Whenever the governor turnsthe arm is the spindle p follows and turns by means or" the square headthe cross bar 24 and the piston valve, K. According to the extent anddirection of motion of the arm is the cross sections oi the ports 2' andor may be made larger or smallercorresponding to the charge put on themotor or corresponding to the quantity of gas being aspirated inaccordance with the actual chargeof-the motor.

By the turning of the piston valve K the governor produces a throttlingin the same measure for the air as well as for the gas,

gas through the ports m and m by the piss ton valve, while the air portsremain constantly and fully open. The valve K must therefore be made.shorter as shown in Fig. 2. Finally the same means may be used tocombine both ways of regulation by varying at constant compression.theproportion of the mixture to a certain limit within the safety ofignition and by regulating from this limit in varying the quantity ofgas mixture while the proportion of mixture -remains constant orapproximately constant.

In this case the length of the air ports i and of the 'gas'ports m inthe valve K should be made difi'erent, preferably so that the throttlingof the air commences only at a certain position of the valve while eachposition of the governor and of the piston valve produces a change ofthe throttling of the gas; the air ports '2' remain fully open until theparts reach this certain position as it is indicated in the Figs. 3 and3 In the modification Figs; 4 and 4 the valve stem cl is inclosed withina sleeve p which is adapted to turn in a sleeve f of the valve case; thearm is which is connected with the governor is keyed upon the upper endof sleeve 9 the lower end of which is fork-shaped as at g, and'theprongs of said forkengage the cross bar gu compelling the Whilelongitudinally the prongs of the fork admit of a free motion of thepartswith respect to each other. cured to the stem of the valve by meansof a ring t and a wedge so that the piston valve K follows the motion ofthe inlet valve longitudinally while the governor turns the same more orless in the described manner. This modification ofi'ers, the advantagethat the. inlet valve may beturned'for fully 360 while in abovedescribed" arrangement the turning would be limited to less than 180.

Having thus describedmy invention what I claim as new and wish tosecureby Letters v Patent of the-UnitedStates is 1. Valve motion for gasmotors, composed of the lnlet valve a spring and a car-adorcontrollingthesame in-c mbination with a piston valve K having.ports1'7 and-m inits cylindrical bodyadapted to cover the ports and m communicating withthe air and the gas supply respectively" said piston valve being mountedon the stem of the inlet valve.

to follow the motion of the latter longitudi The cross bar is se-,

nally and to turn with a spindle 1') connected with the governor of themotor to be turned thereby in order to displace the port openings uponeach other by the longitudinal movement of the piston valve K andsimultaneously close said port openings more or less by a part of arevolution, thereby regu" lating' the working of the motor substantiallydescribed.

Valve motion for gas motors composed of the inlet valve, a spring and acam'for controlling the same in combination w th a piston valve K havingports m in its cylindrical body adapted to cover the orts mcommunicating with the gas supp y, said piston valve being so mounted onthevalve stem of the inlet valve to follow the motion of the latterlongitudinally and to turn with a spindle 7) connected with the governorof by the longitudinal movement of the iston valve K, and simultaneouslyclose sai port openings more or less by a part of a revolution therebyregulating the working of the motor. v

\{iilve motion for gas motors composed of the inlet valve controlled bya spring and cam or an eccentric in the ordinary manner in combinationwith 'a piston valve K having ports 2' and m in its cylindrical bodyadapted to cover the ports 2' and m communicating with the air and gassupply, said piston valve being connected with the valve stem by meansof a cross bar gu slidably secured on a square head at the lower end ofa revoluble spindle p in the hollow stem of the, inlet valve, the upperend of said spindle carrying an arm is controlled by, the

governor substantially as described. same to follow the revolution ofsleeve 5') 4. Valve motion for gas motors composed of the inlet valvecontrolled by spring and cam or an eccentric in the ordinary manner, incombination with a piston valve K having ports i and m in itscylindrical bodyadapted to cover the ports 2' and m commu nicating withthe air and gas supply respectively said piston valve being rotatablysecured on the valve stem d' of the inlet valve by means of a cross bargu, said cross bar playing in a fork at the lower part of a revolublesleeve surrounding the valve stem the upper end of said sleeve carryingan arm 70 controlled by the governor substantially as described.

5. In a valve motion for gas motors an inlet-valve a piston valve Kcontrolled simultaneously with the said inlet valve by and revinlet-valve, a piston-valve K controlled simultaneously with the saidinlet-valve by a cam and revoluble by the governor of the motor, saidpiston-valve. having gas ports and air ports and aidaptedto throttle theair to throttle, the-"air-end gas supply -er the cylindersimultaneouslyand in equal parts. 8, 111 a'qvalve motion for gas motors an inletvalve, a piston valve 'K "controlled, snnnltaneovslywith the said1nlet-vulve by a cam making an lnvariable stroke and rev oluble by-thegovernor of the motor, said piston-valve having gas ports and air portsand adapted to throttle the air and gas supply for the cylindersimultaneously, the said gas ports being ponstructed to be closed beforethe closing of said inlet valve, whereby the piston 'valve actssimultaneously as 'a regulating device and as a mechanically controlledClosing inea ns for the gas ports.

9.111 a valve motion for-gas motors an inlet valve E-in combinationWith' means for regulating it-smotion a governor ande piston valve Kmounted on the stem of said'inlet valve andvprovided with ports said'piston valve being connectedv'vith a cross-bar compelling it to participatein the openlng 'nnd closing. movements of the valve E, and I a shaftp'square at its lower end entering the hollow stem (Z of the" inlet;alve and connected with a lever is so that" he piston f valve may berevolved by the governor;

Intestimony vvhereof I afiix my signature.

i GUSTAV MEES. In, the. presence 'ofc A YVLLLIAM Essnmvnnv, OSKARMARKISGH.

Disclaimer in Letters Patent No. 921,864.

DISCLAIMER.

921,864.-Gustav Mees, Dusseldorf, Germany. VA vEMoTIoN FOR GAs-MoToRs.Patent dated May 18, 1909. Disclaimer filed October 18, 1917, by theassignees, Westinghouse Electric & Manufacturing Company and TheColonial Trust Company, trustee.

Enters its disclaimer To that part of the claim in said specificationwhich is in the following Words,

to Wit:

5. In a valve motion for gas motors an inlet-valve, a piston valve Kcontrolled simultaneously with the said inlet valve by a cam making aninvariable stroke and revoluble by the governor of the motor.

[Ofiic'ial Gazette November 6, 1917.]

